EP3208427A1 - Service tube for a turbine engine - Google Patents
Service tube for a turbine engine Download PDFInfo
- Publication number
- EP3208427A1 EP3208427A1 EP17156325.7A EP17156325A EP3208427A1 EP 3208427 A1 EP3208427 A1 EP 3208427A1 EP 17156325 A EP17156325 A EP 17156325A EP 3208427 A1 EP3208427 A1 EP 3208427A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- service tube
- heat shield
- fitting
- tube assembly
- skirt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/18—Lubricating arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/06—Arrangements of bearings; Lubricating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/08—Cooling; Heating; Heat-insulation
- F01D25/14—Casings modified therefor
- F01D25/145—Thermally insulated casings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D9/00—Stators
- F01D9/06—Fluid supply conduits to nozzles or the like
- F01D9/065—Fluid supply or removal conduits traversing the working fluid flow, e.g. for lubrication-, cooling-, or sealing fluids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/24—Heat or noise insulation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2220/00—Application
- F05D2220/30—Application in turbines
- F05D2220/32—Application in turbines in gas turbines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2230/00—Manufacture
- F05D2230/60—Assembly methods
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2240/00—Components
- F05D2240/10—Stators
- F05D2240/15—Heat shield
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2260/00—Function
- F05D2260/20—Heat transfer, e.g. cooling
- F05D2260/231—Preventing heat transfer
Definitions
- the service tube assembly 84 as illustrated in FIG. 3 is a scavenge tube for oil removal, and is selected for illustrative purposes only.
- the service tube assembly 84 can have similar applicability in any oil supply, scavenge, drain, or educter tubes.
- FIGS. 8A - 8D four alternative skirts 98 are illustrated for surrounding the decreasing cross-sectional area 102 of the service tube 96 at the radial inner fitting 90.
- FIG. 8A includes a fitted skirt 140.
- the fitted skirt 140 is shaped to follow the curvature of the decreasing cross-sectional area 102 of the service tube 96, coupling to a portion of the radial inner fitting 90.
- the interior 112 of the heat shield sleeve is not in fluid communication with the interior 86 of the strut 82, being separated by the tube collar 105.
- the rectangular spacer 176 can be an annular spacer, or can include a plurality of discrete spacers mounted along the heat shield sleeve 94 in a patterned manner. Alternatively, the rectangular spacer can be square-shaped or any other quadrilateral, hemispherical, oval, or extrusion formed geometry.
- FIG. 10C illustrates a bump spacer 178. The bump spacer 178 can have a semi-circular cross-section and mount to the service tube 96, or alternatively, to the heat shield sleeve 94.
- FIG. 10D illustrates a dimpled spacer 179, which can be a concavity or depression in the service tube 96 or heat shield sleeve 94, being integral therewith. The dimpled spacer 179 can be annular around the service tube 96, or can be multiple discrete units disposed in a patterned manner about the service tube 96.
Abstract
An apparatus and method of reducing operating temperatures of a gas turbine engine 10, exposed to a service tube assembly 84 by utilizing a skirt 98 and radially outer mount 90. The reduction in temperature exposure minimizes temperatures of the service tube assembly 84 during engine 10 operation to reduce the incidence of oil coking or varnish.
Description
- Turbine engines, and particularly gas or combustion turbine engines, are rotary engines that extract energy from a flow of combusted gases passing through the engine in a series of compressor stages, which include pairs of rotating blades and stationary vanes, through a combustor, and then onto a multitude of turbine blades.
- Gas turbine engines for aircraft often require lubrication of moving components. In order to keep these components lubricated, oil or an oil/air mixture is fed through the engine to these components. Service tubes fluidly couple different portions of the turbine engine or couple portions of the turbine engine to other parts of the aircraft. The service tubes can supply the oil or oil/air mixture to and/or from the turbine engine and between the different portions of the turbine engine. A heat shield can be used to protect a portion of the service tube from the hot temperatures of the turbine engine. Current heat shields do not protect the entire extent of the service tube.
- Gas turbine engines have been used for land and nautical locomotion and power generation, but are most commonly used for aeronautical applications such as for airplanes, including helicopters. In airplanes, gas turbine engines are used for propulsion of the aircraft.
- In one aspect, the disclosure relates to a method of installing a heat shield about a service tube located within a strut for a gas turbine engine and having radially inner and outer fittings. The method comprises (1) sliding a heat shield sleeve over the service tube through a radially inner opening of the strut until a radially outer end of the heat shield abuts the outer fitting exteriorly of the strut; (2) securing the heat shield sleeve to the outer fitting to form a first sub assembly; (3) moving the first sub assembly radially inwardly until the outer fitting abuts a portion of the strut; and (4) securing the outer fitting to the portion of the strut.
- In another aspect, the disclosure relates to a service tube assembly for a strut of a gas turbine engine comprising a service tube having an outer radial fitting and an inner radial fitting, and a heat shield extending from the outer radial fitting toward the inner radial fitting. The heat shield is secured to the outer radial fitting.
- In yet another aspect, the disclosure relates to a heat shield for a service tube passing through a strut of a gas turbine engine. The heat shield comprises a sleeve sized to be slidably received over the service tube and a skirt having at least two portions sized to surround the service tube. The portions of the skirt are secured to each other and to an end of the sleeve.
- In the drawings:
-
FIG. 1 is a schematic, sectional view of a gas turbine engine. -
FIG. 2 is a cross-sectional view of a portion of a turbine rear frame and a low pressure turbine section. -
FIG. 3 is a cross-sectional view of the turbine rear frame ofFIG. 2 having a strut with a service tube assembly. -
FIG. 4 is an exploded view of the service tube assembly ofFIG. 3 . -
FIG. 5 is a bottom perspective view of an outer radial fitting for the service tube assembly ofFIG. 3 . -
FIG. 6 is an exploded view of a skirt for the service tube assembly ofFIG. 3 . -
FIG. 7 is a bottom view of the service tube assembly ofFIG. 3 illustrating the skirt at the radially inner fitting. -
FIGS. 8A - 8D illustrate four different skirts for surrounding the service tube assembly at the radially inner fitting. -
FIG. 9 illustrates a cross-sectional view having spacers between a service tube and a heat shield. -
FIGS. 10A- 10D illustrate four different types of spacers ofFIG. 10 . -
FIGS. 11A - 11H illustrate a method of installing the service tube assembly within the turbine rear frame ofFIG. 2 . - The described embodiments of the present invention are directed to systems, methods, and other devices related to a service tube assembly in a turbine engine. For purposes of illustration, the present invention will be described with respect to an aircraft gas turbine engine. It will be understood, however, that the invention is not so limited and can have general applicability in non-aircraft applications, such as other mobile applications and non-mobile industrial, commercial, and residential applications. Furthermore, while the service tube assembly is described within a strut assembly, the present invention can have applications in any area where service tube heat shielding is required. For example, this invention can extend to service tubes passing through fairings.
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FIG. 1 is a schematic cross-sectional diagram of agas turbine engine 10 for an aircraft. Theengine 10 has a generally longitudinally extending axis orcenterline 12 extending forward 14 toaft 16. Theengine 10 includes, in downstream serial flow relationship, afan section 18 including afan 20, acompressor section 22 including a booster or low pressure (LP)compressor 24 and a high pressure (HP)compressor 26, acombustion section 28 including acombustor 30, aturbine section 32 including a HPturbine 34, and aLP turbine 36, and anexhaust section 38. - The
fan section 18 includes afan casing 40 surrounding thefan 20. Thefan 20 includes a plurality offan blades 42 disposed radially about thecenterline 12. The HPcompressor 26, thecombustor 30, and the HPturbine 34 form acore 44 of theengine 10, which generates combustion gases. Thecore 44 is surrounded bycore casing 46, which can be coupled with thefan casing 40. - A HP shaft or
spool 48 disposed coaxially about thecenterline 12 of theengine 10 drivingly connects the HPturbine 34 to the HPcompressor 26. A LP shaft orspool 50, which is disposed coaxially about thecenterline 12 of theengine 10 within the larger diameter annular HPspool 48, drivingly connects theLP turbine 36 to theLP compressor 24 andfan 20. The portions of theengine 10 mounted to and rotating with either or both of thespools rotor 51. - The
LP compressor 24 and the HPcompressor 26 respectively include a plurality ofcompressor stages compressor blades 58 rotate relative to a corresponding set ofstatic compressor vanes 60, 62 (also called a nozzle) to compress or pressurize the stream of fluid passing through the stage. In asingle compressor stage multiple compressor blades centerline 12, from a blade platform to a blade tip, while the corresponding static compressor vanes 60, 62 are positioned downstream of and adjacent to therotating blades FIG. 1 were selected for illustrative purposes only, and that other numbers are possible. Theblades disk 53, which mounts to the corresponding one of the HP andLP spools vanes core casing 46 in a circumferential arrangement about therotor 51. - The HP
turbine 34 and theLP turbine 36 respectively include a plurality ofturbine stages turbine blades static turbine vanes 72, 74 (also called a nozzle) to extract energy from the stream of fluid passing through the stage. In asingle turbine stage multiple turbine blades centerline 12, from a blade platform to a blade tip, while the corresponding static turbine vanes 72, 74 are positioned upstream of and adjacent to the rotatingblades FIG. 1 were selected for illustrative purposes only, and that other numbers are possible. - In operation, the rotating
fan 20 supplies ambient air to theLP compressor 24, which then supplies pressurized ambient air to the HPcompressor 26, which further pressurizes the ambient air. The pressurized air from the HPcompressor 26 is mixed with fuel in thecombustor 30 and ignited, thereby generating combustion gases. Some work is extracted from these gases by the HPturbine 34, which drives the HPcompressor 26. The combustion gases are discharged into theLP turbine 36, which extracts additional work to drive theLP compressor 24, and the exhaust gas is ultimately discharged from theengine 10 via theexhaust section 38. The driving of theLP turbine 36 drives theLP spool 50 to rotate thefan 20 and theLP compressor 24. - Some of the ambient air supplied by the
fan 20 can bypass theengine core 44 and be used for cooling of portions, especially hot portions, of theengine 10, and/or used to cool or power other aspects of the aircraft. In the context of a turbine engine, the hot portions of the engine are normally downstream of thecombustor 30, especially theturbine section 32, with the HPturbine 34 being the hottest portion as it is directly downstream of thecombustion section 28. Other sources of cooling fluid can be, but is not limited to, fluid discharged from theLP compressor 24 or theHP compressor 26. - Turning to
FIG. 2 , downstream of theLP turbine section 36 is aturbine rear frame 80 having a plurality ofstruts 82 disposed radially about theengine centerline 12. Thestruts 82 can be shaped or oriented to straighten and axially direct exhaust fluid from theLP turbine 36. Aservice tube assembly 84 can be disposed in ahollow interior 86 of thestruts 82 for providing oil or an oil/air medium to necessary parts of theengine 10. Theservice tube assembly 84 mounts to theengine casing 46 or a nacelle at a radialouter fitting 88 and a radialinner fitting 90. Thestrut 82 andservice tube assembly 84 disposed therein are downstream of thecombustor 30 and are exposed to high temperatures during engine operation. The high temperatures can heat theservice tube assembly 84 within thestrut 82, heating the oil or oil/air medium moving through theservice tube assembly 84. The high temperatures can cause varnish or coking of the oil, leaving a solid residue, which can undergo severe oxidation and thermal breakdown leading to coke deposits. The coke deposits can break and collect on different filters or engine passageways. The blocked passageways can cause engine damage or even shutdown. Therefore, it is desirable to minimize engine varnish or coking. It should be appreciated that theturbine rear frame 80 ofFIG. 2 was selected for illustrative purposes andservice tube assemblies 84 can be utilized in other portions of the engine such as the turbine center frame, fan hub frame, or turbine mid-frame, or any other tubing system providing oil or an oil/air mixture through theengine 10. -
FIG. 3 illustrates a cross-section of thestrut 82 with theservice tube assembly 84 extending radially through thestrut 82. Theservice tube assembly 84 includes anoutlet 92 in the radialouter fitting 88, and aheat shield sleeve 94,service tube 96,skirt 98, andinlet 100 in the radialinner fitting 90. Theinlet 100 fluidly couples theservice tube assembly 84 to a sump (not shown) for removal of oil or oil/air medium and the radialouter fitting 88 mounts both theheat shield sleeve 94 and theservice tube 96 to theengine casing 46. Theheat shield sleeve 94 is a heat shield element to reduce operational temperatures of theservice tube 96. Theheat shield sleeve 94 surrounds theservice tube 96 and is spaced therefrom to form anair gap 101. Theservice tube 96 further includes a decreasingcross-sectional area 102 adjacent to the radialinner fitting 90, with the decreasingcross-sectional area 102 being surrounded by theskirt 98. Theservice tube 96 couples to ahub 104 at the radialinner fitting 90. The radialinner fitting 90 can include atube collar 105 coupled to aretainer plate 107. Thetube collar 105 can include aseal 103, such as a c-seal, sealing the radialinner fitting 90. Theskirt 98 remains spaced from thehub 104 providing for flexion or thermal expansion of theservice tube assembly 84 during engine operation. Theservice tube assembly 84 as illustrated inFIG. 3 is a scavenge tube for oil removal, and is selected for illustrative purposes only. Theservice tube assembly 84 can have similar applicability in any oil supply, scavenge, drain, or educter tubes. - Looking at
FIG. 4 , an exploded view best illustrates the combination of theservice tube assembly 84. The radialouter fitting 88 further includes afirst lip 106 and asecond lip 108 for mounting theheat shield sleeve 94 and theservice tube 96, respectively, to the radialouter fitting 88. Thus, theoutlet 92 can fluidly couple to theinterior 110 of theservice tube 96 separate of theinterior 112 of theheat shield sleeve 94. This is accomplished by coupling thefirst lip 106 to a sleeve outerradial end 114 and coupling thesecond lip 108 to a service tube radialouter end 116. Theskirt 98 can be two-part, having two connectable portions that mount together at the radiallyinner end 114 of theheat shield sleeve 94 surrounding the decreasingcross-sectional area 102 of theservice tube 96. The mountedskirt 98 andheat shield sleeve 94 can extend along the full of theservice tube 96, or, alternatively, can extend along a portion of theservice tube 96 terminating near the hub to maintain sufficient spacing to permit thermal growth. - Looking at
FIG. 5 , the radialouter fitting 88 includes a mountingplate 120 disposed between theoutlet 92 and thelips apertures 122 for mounting the radialouter fitting 88. Thefirst lip 106 surrounds thesecond lip 108 extending only partially from the mountingplate 120 having a filletededge 124. Thesecond lip 108 extends further from the mountingplate 120 relative tofirst lip 106, facilitating coupling of theservice tube 96 and theheat shield sleeve 94 independent of one another. - Looking at
FIG. 6 , theskirt 98 can be shaped to surround the radialinner fitting 90. Each half of the two-part skirt 98 can comprise anupper end 130 and alower end 132. Theupper end 130 of each half is complementary to half of the shape of the radiallyinner end 114 of theheat shield sleeve 94. The cross-sectional area of theskirt 98 increases moving toward thelower end 132, with each part having a flared radialinner portion 134 sized to receive the radialinner fitting 90.FIG. 7 shows a bottom view of the radialinner fitting 90 looking radially outwardly, illustrating theskirt 98 surrounding the radialinner fitting 90. The flared radialinner portion 134 is sized to surround the greatest cross-sectional width of the radialinner fitting 90, being slightly spaced therefrom. - Looking at
FIGS. 8A - 8D , fouralternative skirts 98 are illustrated for surrounding the decreasingcross-sectional area 102 of theservice tube 96 at the radialinner fitting 90.FIG. 8A includes a fittedskirt 140. The fittedskirt 140 is shaped to follow the curvature of the decreasingcross-sectional area 102 of theservice tube 96, coupling to a portion of the radialinner fitting 90. With the fittedskirt 140, theinterior 112 of the heat shield sleeve is not in fluid communication with the interior 86 of thestrut 82, being separated by thetube collar 105.FIG. 8B shows astraight skirt 142 having askirt bottom 144 partially enclosing theinterior 112 of theheat shield sleeve 94, having anservice tube aperture 146 permitting theservice tube 96 to extend through thestraight skirt 142 and couple to the radialinner fitting 90.FIG. 8C shows a variation on thestraight skirt 142 ofFIG. 8B , illustrating a secondstraight skirt 150 without theskirt bottom 144. The secondstraight skirt 150 extends to adjacent thehub 104, being slightly spaced therefrom.FIG. 8D illustrates a tabbedskirt 152 having askirt bottom 144 extending to anannular tab 156 for securing to theretainer plate 107 at anannular tab reception 158. With the tabbedskirt 152, theinterior 112 of theheat shield sleeve 94 is not in fluid communication with the interior 86 of thestrut 82. It should be appreciated that any of theskirts service tube assembly 84. -
FIG. 9 illustrates a close-up view of theheat shield sleeve 94 surrounding and spaced fromservice tube 96 by theannular gap 101. Thegap 101 can be sufficient such that air within the gap will be the primary mode of heat transfer between theheat shield sleeve 94 and theservice tube 96. A plurality ofspacers 162 can mount to theexternal surface 164 of theservice tube 96 within thegap 101 or, alternatively, can mount to theinternal surface 166 of theheat shield sleeve 94. However, it is beneficial to mount thespacers 162 to theservice tube 96 as opposed to theheat shield 94 to minimize the amount of heat conducted from the heat shield Thespacers 162 can be metal wire spacers, having an annular shape disposed around theannular gap 101, and can have a circular cross-section. Alternatively, thespacers 162 can be point spacers, including multiple discrete points mounted to theservice tube 96 or theheat shield sleeve 94. Thespacers 162 are useful in maintaining aconsistent gap 101 between theservice tube 96 and theheat shield sleeve 94 along the length of theservice tube assembly 84. It should be appreciated that while thespacers 162 mount to either theheat shield 94 or theservice tube 96, that they are spaced from the other of theheat shield 94 or theservice tube 96 to prevent heat transfer through thespacers 162. - Looking at
FIGS. 10A - 10D , four alternative spacer cross-sections are illustrated, which can be utilized as thespacer 162 within theservice tube assembly 84. Each alternative spacer can mount to either theservice tube 96 or theheat shield sleeve 94, despite being shown in only one position. InFIG. 10A , amounted point spacer 170, being annular and having a circular cross-section, can further include amount support 172 for better securing thepoint spacer 170 to theheat shield 94. Themount support 172 provides additional security to thepoint spacer 170, which can otherwise move or separate from theheat shield sleeve 94 during operation or thermal expansion.FIG. 10B illustrates arectangular spacer 176. Therectangular spacer 176 can be an annular spacer, or can include a plurality of discrete spacers mounted along theheat shield sleeve 94 in a patterned manner. Alternatively, the rectangular spacer can be square-shaped or any other quadrilateral, hemispherical, oval, or extrusion formed geometry.FIG. 10C illustrates abump spacer 178. Thebump spacer 178 can have a semi-circular cross-section and mount to theservice tube 96, or alternatively, to theheat shield sleeve 94.FIG. 10D illustrates adimpled spacer 179, which can be a concavity or depression in theservice tube 96 orheat shield sleeve 94, being integral therewith. Thedimpled spacer 179 can be annular around theservice tube 96, or can be multiple discrete units disposed in a patterned manner about theservice tube 96. - 'Coke' is a solid residue, which is a time-at-temperature phenomenon, when oil undergoes severe oxidation, sulfidation, and/or thermal breakdown at extreme engine temperatures. At higher temperatures, the coke residue becomes harder and darker, which can create a condition where the coke can blocks filters and oil system passageways. Blockage of the filters and passageways can cause engine damage or even shutdown, which can occur mid-flight. During operation, oil coking can occur at higher temperatures exposed to the
service tube assembly 84. Therefore, it is desirable to keepservice tube assembly 84 temperatures minimized. It should be appreciated that as described herein, theservice tube assembly 84 utilizing theskirt 98 and theheat shield sleeve 94 mounted to the radialouter fitting 88 can minimize theservice tube assembly 84 temperatures to minimize or eliminate the occurrence of oil coking or varnish. - Looking at FIGS. 12A - 12H, a method of installing a heat shield about a service tube, located within a strut for a gas turbine engine, is illustrated. It should be appreciated that the order of FIGS. 12A - 12H is non-limiting, and that the order can change, vary, or steps as described can be combined. In FIG. 12A, illustrating
step 200, theheat shield sleeve 94 slides over theservice tube 96 until the radiallyinner end 114 of theheat shield sleeve 94 surrounds a portion of the decreasingcross-sectional area 102 of theservice tube 96. In FIG. 12B, atstep 202, the twopart skirt 98 can be combined and mounted to the radiallyinner end 114 of theheat shield sleeve 94. The twopart skirt 98 can couple together, such as by welding, and weld to the radiallyinner end 114 of theheat shield sleeve 94 to form afirst assembly 204 illustrated in FIG. 12C. - Turning to FIG. 12D, illustrating
step 206, thefirst assembly 204 inserts into thestrut 82 from radially inward moving radially outward. Thefirst assembly 204 is inserted through thestrut 82 until anupper end 208 of thefirst assembly 204 extends through a strut fitting 210 disposed on the radiallyouter surface 212 of thestrut 82 as shown in FIG. 12E. Turning to FIG. 12F, atstep 214 the radialouter fitting 88 first mounts to theservice tube 96 at thesecond lip 108. In order to facilitate the mounting, theservice tube 96 can be pushed upward to extend out of theheat shield sleeve 94. After mounting theservice tube 96 to thesecond lip 108, theheat shield sleeve 94 can mount to thefirst lip 106, as shown in FIG. 12G asstep 218. Afirst sub assembly 216 can include the combinedheat shields sleeve 94,service tube 96,skirt 98, and the radialouter fitting 88, being disposed within thestrut 82. - The
first sub assembly 216 then moves radially inward, illustrated byarrow 220, until the mountingplate 120 of the radialouter fitting 88 abuts the strut fitting 210. Thefittings apertures 122 utilizing a fastener such as a screw of bolt. Looking at FIG. 12H, thefirst sub assembly 216 couples to thestrut 82 at the radialouter fitting 88. Underneath thehub 104, the radialinner fitting 90 can couple to the bottom of the inner casing with theretainer plate 107, completing installation of theservice tube assembly 84. Additionally, the method of installation can include providingspacers 162, as shown inFIGS. 9 - 10C between theheat shield sleeve 94 and theservice tube 96, while thespacers 162 can come preinstalled with theheat shield sleeve 94 or theservice tube 96. - It should be appreciated that the geometric features including the
heat shield sleeve 94,service tube 96,skirt 98,fittings spacers 162 reduce operational temperatures by minimizing flow provided to the interior 112 between theservice tube 96 and theheat shield sleeve 94. The reduced temperature along theservice tube 96 minimizes or eliminates oil coking or varnish, minimizing or eliminating the operational problems associated therewith. - This written description uses examples to disclose the invention, including the best mode, and to enable any person skilled in the art to practice the invention, including making and using any devices or systems and performing any incorporated methods. The patentable scope of the invention is defined by the claims, and can include other examples that occur to those skilled in the art. Such other examples are intended to be within the scope of the claims if they have structural elements that do not differ from the literal language of the claims, or if they include equivalent structural elements with insubstantial differences from the literal languages of the claims.
- Various aspects and embodiments of the present invention are defined by the following numbered clauses:
- 1. A method of installing a heat shield about a service tube located within a strut for a gas turbine engine and having radially inner and outer fittings, the method comprising:
- sliding a heat shield sleeve over the service tube through a radially inner opening of the strut until a radially outer end of the heat shield sleeve abuts the outer fitting exteriorly of the strut;
- securing the heat shield sleeve to the outer fitting to form a first sub assembly;
- moving the first sub assembly radially inwardly until the outer fitting abuts a portion of the strut; and
- securing the outer fitting to the portion of the strut.
- 2. The method as claimed in clause 1, further comprising, prior to the sliding the heat shield sleeve, sliding the service tube relative to the heat shield sleeve and strut until a radially outer end of the service tube abuts the outer fitting exteriorly of the strut, and securing the service tube to the outer fitting.
- 3. The method as claimed in any preceding clause, further comprising, prior to the sliding the heat shield sleeve, placing opposing portions of a heat shield skirt about the service tube and securing the opposing portions to each other and to a radially inner end of the heat shield sleeve.
- 4. The method as claimed in any preceding clause, further comprising securing the radially inner fitting to a radially inner end of the service tube.
- 5. The method as claimed in any preceding clause, further comprising providing spacers between the heat shield sleeve and the service tube.
- 6. A service tube assembly for a strut of a gas turbine engine comprising:
- a service tube having an outer radial fitting and an inner radial fitting; and
- a heat shield extending from the outer radial fitting toward the inner radial fitting;
- wherein the heat shield is secured to the outer radial fitting.
- 7. The service tube assembly as claimed in any preceding clause, wherein the outer radial fitting has a first lip that is secured to an outer radial end of the service tube, and a second lip that is secured to an outer radial end of the heat shield.
- 8. The service tube assembly as claimed in any preceding clause, wherein the heat shield comprises a sleeve that is slidably received over the service tube and which defines the outer radial end of the heat shield.
- 9. The service tube assembly as claimed in any preceding clause, wherein the heat shield further comprises a skirt having a radially outer end secured to the sleeve.
- 10. The service tube assembly as claimed in any preceding clause, wherein the skirt comprises at least two portions that are secured together and around the service tube.
- 11. The service tube assembly as claimed in any preceding clause, wherein the skirt defines a flared radial inner end that is adjacent the inner fitting.
- 12. The service tube assembly as claimed in any preceding clause, wherein the flared radial inner end is sized to receive the inner fitting.
- 13. The service tube assembly as claimed in any preceding clause, further comprising spacers between the heat shield and the service tube.
- 14. The service tube assembly as claimed in any preceding clause, wherein the spacers are dimples formed in the service tube.
- 15. The service tube assembly as claimed in any preceding clause, wherein the heat shield comprises a sleeve that is slidably received over the service tube and which defines the outer radial fitting of the heat shield.
- 16. The service tube assembly as claimed in any preceding clause, wherein the heat shield further comprises a skirt having a flared portion defining a radial inner end of the heat shield.
- 17. The service tube assembly as claimed in any preceding clause, wherein the skirt comprises at least two portions that are secured together and around the service tube.
- 18. The service tube assembly as claimed in any preceding clause, further comprising spacers between the heat shield and the service tube.
- 19. The service tube assembly as claimed in any preceding clause, wherein the spacers are dimples formed in the service tube.
- 20. The service tube assembly as claimed in any preceding clause, wherein the heat shield has a radial inner end at least adjacent the inner fitting.
- 21. The service tube assembly as claimed in any preceding clause, wherein the radial inner end of the heat shield forms a gap with at least a portion of the inner fitting.
- 22. The service tube assembly as claimed in any preceding clause, wherein the radial inner end of the heat shield abuts at least a portion of the inner fitting.
- 23. A heat shield for a service tube passing through a strut of a gas turbine engine, the heat shield comprising:
- a sleeve sized to be slidably received over the service tube; and
- a skirt having a least two portions sized to surround the service tube;
- wherein the portions of the skirt are secured to each other and to an end of the sleeve.
- 24. The heat shield as claimed in any preceding clause, further comprising a hub wherein a combined length of the sleeve and skirt is less than that of the service tube to define a gap between the skirt and the hub.
- 25. The heat shield as claimed in any preceding clause, wherein the skirt defines a flared portion.
- 26. The heat shield as claimed in any preceding clause, wherein the flared portion defines a radial inner end of the heat shield.
- 27. The heat shield as claimed in any preceding clause, further comprising spacers extending into an interior of the sleeve.
- 28. The heat shield as claimed in any preceding clause, wherein the spacers are point spacers.
- 29. The heat shield as claimed in any preceding clause, wherein the spacers are discrete.
- 30. The heat shield as claimed in any preceding clause, wherein the service tube comprises dimples forming the spacers.
Claims (10)
- A service tube assembly (84) for a strut (82) of a gas turbine engine (10) comprising:a service tube (96) having an outer radial fitting (88) and an inner radial fitting (90); anda heat shield (94) extending from the outer radial fitting (88) toward the inner radial fitting (90);wherein the heat shield (94) is secured to the outer radial fitting (88).
- The service tube assembly (84) of claim 1, wherein the outer radial fitting (88) has a first lip (106) that is secured to an outer radial end (116) of the service tube (96), and a second lip (108) that is secured to an outer radial end of the heat shield (94).
- The service tube assembly (84) of claim 2, wherein the heat shield (94) comprises a sleeve (94) that is slidably received over the service tube (96) and which defines the outer radial end of the heat shield (94).
- The service tube assembly (84) of claim 3, wherein the heat shield (94) further comprises a skirt (98) having a radially outer end (130) secured to the sleeve (94).
- The service tube assembly (84) of claim 4, wherein the skirt (98) comprises at least two portions that are secured together and around the service tube (96).
- The service tube assembly (84) of either of claim 4 or 5, wherein the skirt (98) defines a flared radial inner end (134) that is adjacent the inner fitting (90).
- The service tube assembly (84) of claim 6, wherein the flared radial inner end (134) is sized to receive the inner fitting (90).
- The service tube assembly (84) of any preceding claim, further comprising spacers (162) between the heat shield (94) and the service tube (96).
- The service tube assembly (84) of claim 8, wherein the spacers (162) are dimples (179) formed in the service tube (96).
- The service tube assembly (84) of any preceding claim, wherein the heat shield (94) comprises a sleeve (96) that is slidably received over the service tube (94) and which defines the outer radial fitting of the heat shield (96).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IN201641005620 | 2016-02-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3208427A1 true EP3208427A1 (en) | 2017-08-23 |
Family
ID=58098461
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17156325.7A Withdrawn EP3208427A1 (en) | 2016-02-18 | 2017-02-15 | Service tube for a turbine engine |
Country Status (5)
Country | Link |
---|---|
US (1) | US10577973B2 (en) |
EP (1) | EP3208427A1 (en) |
JP (1) | JP2017198189A (en) |
CN (2) | CN107091160B (en) |
CA (1) | CA2958096A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3450696A1 (en) * | 2017-08-29 | 2019-03-06 | United Technologies Corporation | Segmented conduit with airfoil geometry |
EP3470630A1 (en) * | 2017-10-13 | 2019-04-17 | United Technologies Corporation | Double wall service tube with annular airflow passage |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11415015B2 (en) | 2019-10-23 | 2022-08-16 | Pratt & Whitney Canada Corp. | Sleeve for oil service tubes |
US11603770B2 (en) * | 2021-04-21 | 2023-03-14 | Raytheon Technologies Corporation | Vane assembly with integrated nozzle tube |
US11927137B2 (en) | 2022-03-21 | 2024-03-12 | Ge Infrastructure Technology Llc | System and method for insulating components in an exhaust gas flow from a gas turbine |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100135786A1 (en) * | 2008-11-29 | 2010-06-03 | John Alan Manteiga | Integrated service tube and impingement baffle for a gas turbine engine |
WO2014051658A1 (en) * | 2012-09-26 | 2014-04-03 | United Technologies Corporation | Seal assembly for a static structure of a gas turbine engine |
US20140205447A1 (en) * | 2013-01-22 | 2014-07-24 | Harry Patat | Purge and cooling air for an exhaust section of a gas turbine assembly |
WO2014114653A2 (en) * | 2013-01-22 | 2014-07-31 | Siemens Aktiengesellschaft | Gas turbine outer case active ambient cooling including air exhaust into sub-ambient cavity |
US20150052872A1 (en) * | 2013-08-20 | 2015-02-26 | Honeywell International Inc. | Thermal isolating service tubes and assemblies thereof for gas turbine engines |
Family Cites Families (129)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU5076890A (en) | 1989-03-13 | 1990-09-20 | Safety-Kleen Corp. | Cleaning compositions and methods |
AU685766B2 (en) | 1993-03-03 | 1998-01-29 | Ebara Corporation | Pressurized internal circulating fluidized-bed boiler |
US6662546B1 (en) | 1993-06-23 | 2003-12-16 | General Electric Company | Gas turbine engine fan |
IT1285384B1 (en) | 1996-05-31 | 1998-06-03 | Pall Corp | PURIFIER DEVICE FOR A BREATHER CIRCUIT OF A CRANKCASE OF AN ENDOTHERMIC ENGINE, AND BREATHER CIRCUIT FITTED WITH THIS DEVICE |
US6001426A (en) | 1996-07-25 | 1999-12-14 | Utron Inc. | High velocity pulsed wire-arc spray |
US5938975A (en) | 1996-12-23 | 1999-08-17 | Ennis; Bernard | Method and apparatus for total energy fuel conversion systems |
JPH1135950A (en) | 1996-12-26 | 1999-02-09 | Mitsubishi Heavy Ind Ltd | Process for generation of electric power and power generation apparatus |
US6247440B1 (en) | 1997-05-12 | 2001-06-19 | Cummins Engine Ip, Inc. | Oil drain tube with annular seal |
KR100525879B1 (en) | 1997-06-10 | 2005-11-02 | 엑손모빌 케미칼 패턴츠 인코포레이티드 | Pyrolysis furnace with an internally finned u-shaped radiant coil |
US6187465B1 (en) | 1997-11-07 | 2001-02-13 | Terry R. Galloway | Process and system for converting carbonaceous feedstocks into energy without greenhouse gas emissions |
US6038862A (en) | 1997-12-23 | 2000-03-21 | United Technologies Corporation | Vibration damper for a fuel nozzle of a gas turbine engine |
US20050120715A1 (en) | 1997-12-23 | 2005-06-09 | Christion School Of Technology Charitable Foundation Trust | Heat energy recapture and recycle and its new applications |
US6125624A (en) | 1998-04-17 | 2000-10-03 | Pratt & Whitney Canada Corp. | Anti-coking fuel injector purging device |
DE69915323T2 (en) | 1998-09-14 | 2005-02-24 | Kabushiki Kaisha Toshiba | MEDIUM, DEVICE AND METHOD FOR INFORMATION RECORDING |
US6261070B1 (en) | 1998-09-17 | 2001-07-17 | El Paso Natural Gas Company | In-line electric motor driven compressor |
US6102577A (en) | 1998-10-13 | 2000-08-15 | Pratt & Whitney Canada Corp. | Isolated oil feed |
US6148532A (en) | 1998-10-30 | 2000-11-21 | General Electric Company | Flatness gage |
US6329633B1 (en) | 1998-11-20 | 2001-12-11 | United Technologies Corporation | Method and material for processing a component for laser machining |
US6306917B1 (en) | 1998-12-16 | 2001-10-23 | Rentech, Inc. | Processes for the production of hydrocarbons, power and carbon dioxide from carbon-containing materials |
WO2000040851A1 (en) | 1999-01-04 | 2000-07-13 | Allison Advanced Development Company | Exhaust mixer and apparatus using same |
US6289872B1 (en) | 1999-02-04 | 2001-09-18 | Dimitrios Dardalis | Rotating sleeve engine |
US6648931B1 (en) | 1999-03-26 | 2003-11-18 | Fluor Corporation | Configuration and process for gasification of carbonaceous materials |
US6385960B1 (en) | 1999-10-14 | 2002-05-14 | General Electric Company | Methods and apparatus for operation of gas turbines |
US20030120858A1 (en) | 2000-09-15 | 2003-06-26 | Matrix Semiconductor, Inc. | Memory devices and methods for use therewith |
US6438938B1 (en) | 2000-11-28 | 2002-08-27 | Rolls-Royce Corporation | Bearing compartment self cooling vent system |
US7751411B2 (en) | 2001-01-10 | 2010-07-06 | Pmc-Sierra, Inc. | System interface for cell and/or packet transfer |
US6528557B2 (en) | 2001-02-02 | 2003-03-04 | Xerox Corporation | Inks comprising linear Asbs‘A’ block copolymers of alkylene oxide and siloxane |
US6613815B2 (en) | 2001-02-02 | 2003-09-02 | Xerox Corporation | Inks comprising linear ABSCS′B′A′or BASCS′A′B′alkylene oxide/siloxane block copolymers |
US8277522B2 (en) | 2002-04-17 | 2012-10-02 | Standard Alcohol Company Of America, Inc. | Mixed alcohol fuels for internal combustion engines, furnaces, boilers, kilns and gasifiers |
US6994156B2 (en) | 2001-04-20 | 2006-02-07 | Coolsmart Llc | Air-conditioning system with thermal storage |
US6880633B2 (en) | 2001-04-24 | 2005-04-19 | Shell Oil Company | In situ thermal processing of an oil shale formation to produce a desired product |
JP2002349854A (en) | 2001-05-30 | 2002-12-04 | Mitsubishi Heavy Ind Ltd | Pilot nozzle of gas turbine combustor, and supply path converter |
JP3924136B2 (en) | 2001-06-27 | 2007-06-06 | 三菱重工業株式会社 | Gas turbine combustor |
US6789522B2 (en) | 2001-07-23 | 2004-09-14 | John Seymour | Engine for aeronautical applications |
US6584763B2 (en) | 2001-08-01 | 2003-07-01 | Rohr, Inc. | Lock for the translating sleeve of a turbofan engine thrust reverser |
US6694772B2 (en) | 2001-08-09 | 2004-02-24 | Ebara Corporation | Absorption chiller-heater and generator for use in such absorption chiller-heater |
US6596780B2 (en) | 2001-10-23 | 2003-07-22 | Texaco Inc. | Making fischer-tropsch liquids and power |
DE10251925A1 (en) | 2001-11-13 | 2003-07-03 | Alstom Switzerland Ltd | Device for dust and dirt separation in flowing media e.g. for cleaning coolant in turbine plant, has flow control element(s) near dust extraction opening in dust collection chamber to inhibit reverse flow of dust and dirt particles |
US6533541B1 (en) | 2001-12-04 | 2003-03-18 | Honeywell International, Inc. | High energy particle arrestor for air turbine starters |
US6679045B2 (en) * | 2001-12-18 | 2004-01-20 | General Electric Company | Flexibly coupled dual shell bearing housing |
US7053756B2 (en) | 2001-12-21 | 2006-05-30 | Current Technologies, Llc | Facilitating communication of data signals on electric power systems |
GB2367845B (en) | 2002-02-04 | 2002-09-11 | Brian Stapleton Stratford | Improved magma evacuation systems for the prevention of explosions from supervolcanoes |
US6712080B1 (en) | 2002-02-15 | 2004-03-30 | The United States Of America As Represented By The Secretary Of The Army | Flushing system for removing lubricant coking in gas turbine bearings |
DE50305418D1 (en) | 2002-03-14 | 2006-11-30 | Alstom Technology Ltd | THERMAL POWER PROCESS |
US6895325B1 (en) | 2002-04-16 | 2005-05-17 | Altek Power Corporation | Overspeed control system for gas turbine electric powerplant |
US6857600B1 (en) | 2002-04-26 | 2005-02-22 | General Electric Company | Infrared suppressing two dimensional vectorable single expansion ramp nozzle |
JP3938721B2 (en) | 2002-07-01 | 2007-06-27 | オリンパス株式会社 | Endoscope device for measurement |
US6845943B2 (en) | 2002-10-22 | 2005-01-25 | The Boeing Company | Apparatuses and methods for preventing foreign object damage to aircraft engines |
US7117675B2 (en) | 2002-12-03 | 2006-10-10 | General Electric Company | Cooling of liquid fuel components to eliminate coking |
US7614381B2 (en) | 2003-03-28 | 2009-11-10 | Caterpillar Inc. | Power system with an integrated lubrication circuit |
US7452392B2 (en) | 2003-11-29 | 2008-11-18 | Nick Peter A | Process for pyrolytic heat recovery enhanced with gasification of organic material |
US7441850B1 (en) | 2004-01-09 | 2008-10-28 | Conexant Systems, Inc. | Generic ink jet head fire logic |
US7776208B2 (en) | 2004-01-12 | 2010-08-17 | L'air Liquide - Societe Anonyme A Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude | Integration of gasification, hydrocarbon synthesis unit, and refining processes |
JP4694134B2 (en) | 2004-03-09 | 2011-06-08 | 株式会社 日立ディスプレイズ | Display device |
US7198052B2 (en) | 2004-03-12 | 2007-04-03 | General Electric Company | Mobile flushing unit and process |
US7464552B2 (en) | 2004-07-02 | 2008-12-16 | Siemens Energy, Inc. | Acoustically stiffened gas-turbine fuel nozzle |
US7892511B2 (en) | 2004-07-02 | 2011-02-22 | Kellogg Brown & Root Llc | Pseudoisothermal ammonia process |
DE102004040242A1 (en) | 2004-08-13 | 2006-02-23 | Rolls-Royce Deutschland Ltd & Co Kg | Hydraulic shaft seal for the high temperature range |
CA2579174C (en) | 2004-09-03 | 2015-11-24 | Railpower Technologies Corp. | Multiple engine locomotive configuration |
JP2008516176A (en) | 2004-10-07 | 2008-05-15 | ベール ゲーエムベーハー ウント コー カーゲー | Air-cooled exhaust gas heat transfer bodies, especially exhaust gas coolers for automobiles |
US7412741B2 (en) | 2004-10-18 | 2008-08-19 | General Electric Company | Apparatus and methods for cleaning cooling slot surfaces on a rotor wheel of a gas turbine |
US7297173B2 (en) | 2004-11-30 | 2007-11-20 | Donaldson Company, Inc. | Gas turbine air intake system with bypass arrangement and methods |
AP2007004056A0 (en) | 2004-12-16 | 2007-08-31 | Independent Natural Resourcs I | Buoyancy pump power system |
US7320172B1 (en) | 2005-01-10 | 2008-01-22 | Exedy America Corporation | Apparatus for positioning inserts in a receptacle |
CA2600104C (en) | 2005-03-09 | 2012-01-24 | Ihi Corporation | Jig |
US7526847B1 (en) | 2005-03-25 | 2009-05-05 | Honda Motor Co., Ltd. | Crankshaft oil seal installation device |
US7334982B2 (en) | 2005-05-06 | 2008-02-26 | General Electric Company | Apparatus for scavenging lubricating oil |
US8511111B2 (en) | 2005-06-10 | 2013-08-20 | Michael A. Lambert | Automotive adsorption heat pump |
GB2427436B (en) | 2005-06-23 | 2007-11-28 | Rolls Royce Plc | Fan duct blade containment assembly |
US7607306B2 (en) | 2005-08-03 | 2009-10-27 | General Electric Company | Infrared suppressor apparatus and method |
JP2007051574A (en) | 2005-08-17 | 2007-03-01 | Hitachi Ltd | Turbine bearing device |
DE102005042115A1 (en) | 2005-09-05 | 2007-03-08 | Rolls-Royce Deutschland Ltd & Co Kg | Blade of a fluid flow machine with block-defined profile skeleton line |
US7559201B2 (en) | 2005-09-08 | 2009-07-14 | Pratt & Whitney Canada Corp. | Redundant fuel manifold sealing arrangement |
US7465146B2 (en) | 2005-12-05 | 2008-12-16 | General Electric Company | Methods and systems for turbine rotor balancing |
US7503947B2 (en) | 2005-12-19 | 2009-03-17 | Eastman Chemical Company | Process for humidifying synthesis gas |
AT502997B1 (en) | 2005-12-20 | 2013-09-15 | Man Truck & Bus Oesterreich Ag | DEVICE FOR INCREASING THE BRAKING PERFORMANCE OF A MULTI-CYLINDER INTERNAL COMBUSTION ENGINE OF A VEHICLE DURING ENGINE BRAKE OPERATION |
US7565793B2 (en) | 2006-02-27 | 2009-07-28 | Honeywell International Inc. | Gas turbine engine fuel control system having start / back up check valve (SBUC) providing a main fuel check valve function |
WO2007106188A2 (en) | 2006-02-27 | 2007-09-20 | Sikorsky Aircraft Corporation | Infrared suppression system with spiral septum |
JP4418442B2 (en) | 2006-03-30 | 2010-02-17 | 三菱重工業株式会社 | Gas turbine combustor and combustion control method |
US7975552B2 (en) | 2006-04-21 | 2011-07-12 | Kulite Semiconductor Products, Inc. | Pressure transducer employing a micro-filter and emulating an infinite tube pressure transducer |
US8529646B2 (en) | 2006-05-01 | 2013-09-10 | Lpp Combustion Llc | Integrated system and method for production and vaporization of liquid hydrocarbon fuels for combustion |
FR2903450B1 (en) | 2006-07-07 | 2013-03-01 | Snecma | PROCESS FOR TREATING OIL DISCHARGES IN A GAS TURBINE ENGINE |
US7622033B1 (en) | 2006-07-12 | 2009-11-24 | Uop Llc | Residual oil coking scheme |
US7648566B2 (en) | 2006-11-09 | 2010-01-19 | General Electric Company | Methods and apparatus for carbon dioxide removal from a fluid stream |
GB2446147B (en) | 2007-01-30 | 2009-02-18 | Rolls Royce Plc | Aeroengine drain assembly |
US7699104B2 (en) | 2007-05-23 | 2010-04-20 | Maoz Betzer Tsilevich | Integrated system and method for steam-assisted gravity drainage (SAGD)-heavy oil production using low quality fuel and low quality water |
US8499892B2 (en) | 2007-07-13 | 2013-08-06 | Cameron International Corporation | Integrated rotary valve |
US7964296B2 (en) | 2007-07-27 | 2011-06-21 | Ceradyne, Inc. | High-volume, fully dense silicon nitride monolith and method of making by simultaneously joining and hot pressing a plurality of RBSN parts |
US8356694B2 (en) | 2007-08-28 | 2013-01-22 | Pratt & Whitney | Recirculating lubrication system with sealed lubrication oil storage |
DE102007056625B3 (en) | 2007-11-23 | 2008-09-04 | Lurgi Gmbh | Method for treating a process gas stream containing carbon dioxide during the production of pure synthesis gas from crude comprises compressing contaminated carbon dioxide and removing the impurities by stripping |
US7900872B2 (en) | 2007-12-12 | 2011-03-08 | Spirit Aerosystems, Inc. | Nacelle inlet thermal anti-icing spray duct support system |
US8328889B2 (en) | 2007-12-12 | 2012-12-11 | Kellogg Brown & Root Llc | Efficiency of gasification processes |
US8529865B2 (en) | 2008-02-29 | 2013-09-10 | Phillips 66 Company | Conversion of produced oxygenates to hydrogen or synthesis gas in a carbon-to-liquids process |
US8127786B2 (en) | 2008-04-03 | 2012-03-06 | Hamilton Sundstrand Corporation | Proportional selector valve for selecting between two pressure sources |
US7964090B2 (en) | 2008-05-28 | 2011-06-21 | Kellogg Brown & Root Llc | Integrated solvent deasphalting and gasification |
KR20090126699A (en) | 2008-06-05 | 2009-12-09 | 현대자동차주식회사 | Piston of engine |
US8714119B2 (en) | 2008-06-05 | 2014-05-06 | Stuart B. Pett, Jr. | Parallel cycle internal combustion engine with double headed, double sided piston arrangement |
US8776527B1 (en) | 2008-06-17 | 2014-07-15 | Rolls-Royce North American Technologies, Inc. | Techniques to reduce infrared detection of a gas turbine engine |
DE102008032565A1 (en) | 2008-07-11 | 2010-01-14 | Rolls-Royce Deutschland Ltd & Co Kg | Fuel supply system for a gas turbine engine |
US8662160B2 (en) | 2008-08-20 | 2014-03-04 | Foro Energy Inc. | Systems and conveyance structures for high power long distance laser transmission |
US7834500B2 (en) | 2008-08-29 | 2010-11-16 | Caterpillar Inc | Lubrication arrangement for a generator system |
CH699602A1 (en) | 2008-09-30 | 2010-03-31 | Alstom Technology Ltd | Hydraulic release unit for a valve unit in a combustion engine system, in particular for a quick-closing valve of a turbine installation. |
US8459407B2 (en) | 2008-10-01 | 2013-06-11 | General Electric Company | Sound attenuation systems and methods |
US8152451B2 (en) * | 2008-11-29 | 2012-04-10 | General Electric Company | Split fairing for a gas turbine engine |
US8371812B2 (en) * | 2008-11-29 | 2013-02-12 | General Electric Company | Turbine frame assembly and method for a gas turbine engine |
US8702381B2 (en) | 2008-12-11 | 2014-04-22 | Borgwarner Inc. | Simplified variable geometry turbocharger with vane rings |
US8037690B2 (en) | 2008-12-17 | 2011-10-18 | Pratt & Whitney Canada Corp. | Fuel manifold for gas turbine engine |
US7867310B2 (en) | 2009-01-29 | 2011-01-11 | General Electric Company | Method and apparatus for separating air and oil |
US8007729B2 (en) | 2009-03-20 | 2011-08-30 | Uop Llc | Apparatus for feed preheating with flue gas cooler |
US8733104B2 (en) | 2009-03-23 | 2014-05-27 | General Electric Company | Single loop attemperation control |
US8182771B2 (en) | 2009-04-22 | 2012-05-22 | General Electric Company | Method and apparatus for substitute natural gas generation |
US8052935B2 (en) | 2009-04-30 | 2011-11-08 | General Electric Company | System and method for removing sulfur from gas stream |
US8306373B2 (en) | 2009-05-15 | 2012-11-06 | General Electric Company | Fiber Bragg grating sensing package and system for gas turbine temperature measurement |
US7918310B1 (en) | 2009-09-02 | 2011-04-05 | The United States Of America As Represented By The Secretary Of The Navy | Noise attenuation device for reducing jet engine noise during testing |
US7947155B1 (en) | 2009-11-17 | 2011-05-24 | Green Liquid and Gas Technologies | Process and device for the pyrolysis of feedstock |
US8650878B2 (en) | 2010-03-02 | 2014-02-18 | General Electric Company | Turbine system including valve for leak off line for controlling seal steam flow |
US8713776B2 (en) | 2010-04-07 | 2014-05-06 | General Electric Company | System and tool for installing combustion liners |
US8616834B2 (en) | 2010-04-30 | 2013-12-31 | General Electric Company | Gas turbine engine airfoil integrated heat exchanger |
US8793971B2 (en) | 2010-05-25 | 2014-08-05 | Hamilton Sundstrand Corporation | Fuel pumping system for a gas turbine engine |
US8387354B2 (en) | 2010-09-14 | 2013-03-05 | General Electric Company | Oil varnish mitigation systems |
US8183422B2 (en) | 2010-10-25 | 2012-05-22 | Conocophillips Company | Hydrocarbons from pyrolysis oil |
US8574322B2 (en) | 2010-11-19 | 2013-11-05 | Total Raffinage Marketing | Propellant compositions and methods of making and using the same |
EP2458161B1 (en) | 2010-11-24 | 2014-11-12 | Techspace Aero S.A. | Method for monitoring the oil system of a turbomachine |
US8535449B2 (en) | 2011-06-22 | 2013-09-17 | Envirochem Solutions Llc | Use of coke compositions for on-line gas turbine cleaning |
US8596417B2 (en) | 2011-07-05 | 2013-12-03 | Honeywell International Inc. | Lubrication systems with nozzle blockage detection systems |
CN202493299U (en) * | 2011-11-25 | 2012-10-17 | 湖南天雁机械有限责任公司 | Gas leak-proof heat-insulation structure at turbine terminal of miniature turbocharger |
US8764867B2 (en) | 2012-08-12 | 2014-07-01 | Gregory Ray Brannon | Aircraft oil flow management system for inverted flight |
US10113483B2 (en) * | 2016-02-23 | 2018-10-30 | General Electric Company | Sump housing for a gas turbine engine |
US11041438B2 (en) * | 2016-04-06 | 2021-06-22 | General Electric Company | Gas turbine engine service tube mount |
-
2017
- 2017-02-14 US US15/432,177 patent/US10577973B2/en active Active
- 2017-02-15 EP EP17156325.7A patent/EP3208427A1/en not_active Withdrawn
- 2017-02-15 JP JP2017025513A patent/JP2017198189A/en active Pending
- 2017-02-16 CA CA2958096A patent/CA2958096A1/en not_active Abandoned
- 2017-02-17 CN CN201710086145.1A patent/CN107091160B/en active Active
- 2017-02-17 CN CN201911005252.2A patent/CN111075571B/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100135786A1 (en) * | 2008-11-29 | 2010-06-03 | John Alan Manteiga | Integrated service tube and impingement baffle for a gas turbine engine |
WO2014051658A1 (en) * | 2012-09-26 | 2014-04-03 | United Technologies Corporation | Seal assembly for a static structure of a gas turbine engine |
US20140205447A1 (en) * | 2013-01-22 | 2014-07-24 | Harry Patat | Purge and cooling air for an exhaust section of a gas turbine assembly |
WO2014114653A2 (en) * | 2013-01-22 | 2014-07-31 | Siemens Aktiengesellschaft | Gas turbine outer case active ambient cooling including air exhaust into sub-ambient cavity |
US20150052872A1 (en) * | 2013-08-20 | 2015-02-26 | Honeywell International Inc. | Thermal isolating service tubes and assemblies thereof for gas turbine engines |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3450696A1 (en) * | 2017-08-29 | 2019-03-06 | United Technologies Corporation | Segmented conduit with airfoil geometry |
US10641115B2 (en) | 2017-08-29 | 2020-05-05 | United Technologies Corporation | Segmented conduit with airfoil geometry |
EP3470630A1 (en) * | 2017-10-13 | 2019-04-17 | United Technologies Corporation | Double wall service tube with annular airflow passage |
Also Published As
Publication number | Publication date |
---|---|
CA2958096A1 (en) | 2017-08-18 |
CN107091160B (en) | 2020-04-10 |
US20170321572A1 (en) | 2017-11-09 |
JP2017198189A (en) | 2017-11-02 |
CN111075571A (en) | 2020-04-28 |
US10577973B2 (en) | 2020-03-03 |
CN111075571B (en) | 2022-04-26 |
CN107091160A (en) | 2017-08-25 |
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